Our deepening understanding of brain, mind and consciousness leaves us no option but to expand the neurobiology of psychosis to incorporate the concept of consciousness; its nature, levels, dimensions and dynamics, and the impact this function plays in the development of challenging, abnormal states of mind.

Psychosis has been defined as ‘any one of several altered states of consciousness, transient or persistent, that prevent integration of sensory orextrasensory information into reality models accepted by the broad consensus of society, and that lead to maladaptive behaviour and social sanctions.

Psychotic phenomena such as delusions and hallucinations, described and classified in ICD10 and DSM VI follow clinical observations, which in western society are understood as symptoms of illness. This is based on the assumption that we understand the nature of ‘reality’, and that there is a narrow band of ‘normal’ perception, outside of which there is little useful potential. That certain dramatic experiences and unusual states of mind could be more than part of a purely pathological mental state, and hold some potential for personal growth and transformation is the subject of this paper.